{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MC79L12ACLPR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"MC79L12ACLPR","canonicalUrl":"https://icboms.com/texas-instruments/MC79L12ACLPR","factsUrl":"https://icboms.com/api/mcp/products/MC79L12ACLPR","rawCanonicalId":null},"summary":{"shortDescription":"onsemi MC79L12ACLPR, negative fixed linear regulator, -12V output, 100 mA, TO-92-3 through-hole package, PSRR 42 dB at 120 Hz, 0°C to 125°C operating temperature.","salesMarkdown":"## Fixed -12 V negative rail for bias and auxiliary supplies The onsemi MC79L12ACLPR is a fixed -12 V output negative linear regulator in a TO-92-3 through-hole package. It delivers up to 100 mA — enough for op-amp rails, small-signal bias, or a local negative supply on a mixed-signal board. The output is fixed at -12 V with no adjust pin, so the BOM gets exactly that voltage; no external resistor divider needed. PSRR is 42 dB at 120 Hz. Dropout voltage is 1.7 V max at 40 mA. Operating temperature range is 0°C to 125°C — commercial grade, fine for indoor equipment, office gear, and appliance PCBs. ## Package and mounting — through-hole, formed leads The MC79L12ACLPR comes in a TO-92-3 package with formed leads, through-hole mount. ## Lifecycle and sourcing The MC79L12ACLPR is listed as Active on the lifecycle record, with RoHS3 compliance. No end-of-life notice or last-time-buy window is in effect. That means it remains a safe choice for new designs and ongoing production — no forced redesign from obsolescence.","metaTitle":"MC79L12ACLPR -12V Fixed Negative Linear Regulator, 100 mA","metaDescription":"MC79L12ACLPR is a -12V fixed-output negative linear regulator rated for 100 mA. PSRR 42 dB at 120 Hz. TO-92-3 through-hole. Active, RoHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"42dB (120Hz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA) Formed Leads","lifecycle_stage":"eol_hot","Current - Output":"100mA","Protection Features":"Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Negative","Operating Temperature":"0°C ~ 125°C","Voltage - Input (Max)":"-27V","Voltage Dropout (Max)":"1.7V @ 40mA","Supplier Device Package":"TO-92-3","Voltage - Output (Min/Fixed)":"-12V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.45","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.45000","currency":"USD"},{"qty":10,"price":"$0.38200","currency":"USD"},{"qty":25,"price":"$0.35600","currency":"USD"},{"qty":100,"price":"$0.28490","currency":"USD"},{"qty":250,"price":"$0.26456","currency":"USD"},{"qty":500,"price":"$0.22388","currency":"USD"},{"qty":1000,"price":"$0.17299","currency":"USD"},{"qty":2000,"price":"$0.15773","currency":"USD"},{"qty":6000,"price":"$0.14755","currency":"USD"},{"qty":10000,"price":"$0.14400","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1c535c60675cee4e6039217ec6249978.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is MC79L12ACLPR's PSRR?","answer":"PSRR is 42 dB at 120 Hz — effective at filtering mains-frequency ripple from the negative rail."},{"question":"Can MC79L12ACLPR replace MC79L12AC?","answer":"The MC79L12ACLPR is the Tape & Reel packaged variant of the same -12 V fixed regulator. The bare die and electrical specs are identical; the difference is the shipping medium. If your BOM calls for the 'AC' suffix in bulk tube, the 'LPR' variant in cut tape or reel is a functional drop-in — just verify the package form factor matches your assembly process."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/MC79L12ACLPR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/MC79L12ACLPR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}